OSSF DR TEST PRACTICE
_______ adopted the modern-day OSSF Rules in 1997 and revised them several instances -
ANS-TCEQ
_______ and ________ soil textural lessons are usually unsuitable for popular absorptive OSSF
- ANS-elegance IA and IV
_____________ is a time period describing the capacity of water to migrate thru a soil profile
below both _________ or __________ conditions. - ANS-Hydraulic conductivity, saturated,
unsaturated
A not unusual reason for wastewater system failure is __________. - ANS-hydraulic overloading
(due to modernized tank commonly)
A disposal choice that is probably considered in a clay soil would be a ________. - ANS-drip or
spray irrigation
A drainfield is 50 ft by way of 90 toes and need to be included with an average of 15 inches of
sand loam. How many cubic yards of sandy loam soil should be purchased (locate the quantity
of a square item)? - ANS-208.3 cubic yards
A drip irrigation device must - ANS-be ready with mechanisms to flush from the drainfield again
to the remedy unit or pump tank
A gravelless pipe drainfield - ANS-can be backfilled with Class Ib, II, or III soil
A leaching chamber device - ANS-requires 25% much less absorptive location than a preferred
machine for brand spanking new construction
A renovation issuer for a surface software OSSF the use of a proprietary aerobic plant ought to
have an worker who is - ANS-a licensed protection company or a registered renovation
technician
A minimal lot length of _______ acre is needed for subdivisions serviced through _________
water. The minimal length is ______ acre for those serviced by means of ___________. -
ANS-0.5, public, 1, personal nicely
A mound or soil substitution drainfield is regularly used - ANS-when present soils will now not
provide adequate remedy due to intensity or texture
, A unique chance that OSSF installers face that maximum construction people do no longer is
_______. - ANS-infectious waterborne sicknesses
A pumped effluent drainfield - ANS-is an alternative for properly-drained clay soils on nearly
stage web sites, has a 2% or less slope for single-family dwellings most effective
A septic tank had a running extent of 31 cubic toes. How many gallons does this septic tank
preserve? - ANS-approx. 232 gals
A septic tank is 6 toes in diameter and is 8 ft deep. How many gallons will it hold if the overflow
line is positioned half manner up from the lowest? - ANS-846 gals
A septic tank serving a brand new five-bed room home with 3800 sqft should have a minimal
ability of - ANS-1,250 gallons
A soil shade pattern of orange and brown on a history of gray or bluish color is known as -
ANS-mottling
A solid that may be filtered out of the wastewater is a _________. - ANS-suspended stable
A trendy drainfield excavation must - ANS-be degree inside 1 inch according to 25 ft or a
maximum of three inches whichever is less
A wellknown perforated drainline should be which of the subsequent? - ANS-3 inches to four
inches in diameter, a maximum duration of 150 toes, laid parallel in more than one-line machine
A trench measures 30 inches extensive. How extensive is the ditch in feet? - ANS-2.5'
A trench requires 430 cubic feet of gravel. How many cubic yards have to be bought? - ANS-16
cubic yards
A type of bacteria that indicates sewage contamination is ________. - ANS-fecal coliform
Aerobic remedy units - ANS-utilize cardio bacteria and oxygen to break down complicated
organics and convey carbon dioxide
An essential a part of the installation of an LPD machine is - ANS-checking and adjusting stress
on strains
An individual who holds a legitimate license from the TCEQ and who is compensated via any
other individual to construct, installation, alter, or repair an OSSF is a(n) _________. -
ANS-installer
_______ adopted the modern-day OSSF Rules in 1997 and revised them several instances -
ANS-TCEQ
_______ and ________ soil textural lessons are usually unsuitable for popular absorptive OSSF
- ANS-elegance IA and IV
_____________ is a time period describing the capacity of water to migrate thru a soil profile
below both _________ or __________ conditions. - ANS-Hydraulic conductivity, saturated,
unsaturated
A not unusual reason for wastewater system failure is __________. - ANS-hydraulic overloading
(due to modernized tank commonly)
A disposal choice that is probably considered in a clay soil would be a ________. - ANS-drip or
spray irrigation
A drainfield is 50 ft by way of 90 toes and need to be included with an average of 15 inches of
sand loam. How many cubic yards of sandy loam soil should be purchased (locate the quantity
of a square item)? - ANS-208.3 cubic yards
A drip irrigation device must - ANS-be ready with mechanisms to flush from the drainfield again
to the remedy unit or pump tank
A gravelless pipe drainfield - ANS-can be backfilled with Class Ib, II, or III soil
A leaching chamber device - ANS-requires 25% much less absorptive location than a preferred
machine for brand spanking new construction
A renovation issuer for a surface software OSSF the use of a proprietary aerobic plant ought to
have an worker who is - ANS-a licensed protection company or a registered renovation
technician
A minimal lot length of _______ acre is needed for subdivisions serviced through _________
water. The minimal length is ______ acre for those serviced by means of ___________. -
ANS-0.5, public, 1, personal nicely
A mound or soil substitution drainfield is regularly used - ANS-when present soils will now not
provide adequate remedy due to intensity or texture
, A unique chance that OSSF installers face that maximum construction people do no longer is
_______. - ANS-infectious waterborne sicknesses
A pumped effluent drainfield - ANS-is an alternative for properly-drained clay soils on nearly
stage web sites, has a 2% or less slope for single-family dwellings most effective
A septic tank had a running extent of 31 cubic toes. How many gallons does this septic tank
preserve? - ANS-approx. 232 gals
A septic tank is 6 toes in diameter and is 8 ft deep. How many gallons will it hold if the overflow
line is positioned half manner up from the lowest? - ANS-846 gals
A septic tank serving a brand new five-bed room home with 3800 sqft should have a minimal
ability of - ANS-1,250 gallons
A soil shade pattern of orange and brown on a history of gray or bluish color is known as -
ANS-mottling
A solid that may be filtered out of the wastewater is a _________. - ANS-suspended stable
A trendy drainfield excavation must - ANS-be degree inside 1 inch according to 25 ft or a
maximum of three inches whichever is less
A wellknown perforated drainline should be which of the subsequent? - ANS-3 inches to four
inches in diameter, a maximum duration of 150 toes, laid parallel in more than one-line machine
A trench measures 30 inches extensive. How extensive is the ditch in feet? - ANS-2.5'
A trench requires 430 cubic feet of gravel. How many cubic yards have to be bought? - ANS-16
cubic yards
A type of bacteria that indicates sewage contamination is ________. - ANS-fecal coliform
Aerobic remedy units - ANS-utilize cardio bacteria and oxygen to break down complicated
organics and convey carbon dioxide
An essential a part of the installation of an LPD machine is - ANS-checking and adjusting stress
on strains
An individual who holds a legitimate license from the TCEQ and who is compensated via any
other individual to construct, installation, alter, or repair an OSSF is a(n) _________. -
ANS-installer
